The South Pacific nation of Tonga was all but cut off from the world after an undersea communications cable was severed following the massive eruption of the Hunga Tonga-Hunga Ha'apai volcano on ...

Abstract: Several essential services, such as cellular phones, the Internet, television, navigation, weather prediction, and remote sensing, rely on satellites in low-Earth orbits, the technology for ...

Abstract: There have been proposed spoken dialog systems that utilizes simple database consisted of example sentences and the corresponding reply sentences. However, it is costly to prepare this ...